linux-kernel - Re: [PATCH 1/2] dt-bindings: phy: add vbus-supply optional property to phy-stm32-usbphyc

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Message-ID: <20210326002851.GA2031564@robh.at.kernel.org>
Date:   Thu, 25 Mar 2021 18:28:51 -0600
From:   Rob Herring <robh@...nel.org>
To:     Amelie Delaunay <amelie.delaunay@...s.st.com>
Cc:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        linux-phy@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH 1/2] dt-bindings: phy: add vbus-supply optional property
 to phy-stm32-usbphyc

On Wed, Mar 17, 2021 at 05:09:53PM +0100, Amelie Delaunay wrote:
> This patch adds vbus-supply optional property to phy sub-nodes.
> A regulator for USB VBUS may be needed for host mode.
> 
> Signed-off-by: Amelie Delaunay <amelie.delaunay@...s.st.com>
> ---
>  Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml
> index 018cc1246ee1..ad2378c30334 100644
> --- a/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml
> +++ b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml
> @@ -71,6 +71,9 @@ patternProperties:
>        phy-supply:
>          description: regulator providing 3V3 power supply to the PHY.
>  
> +      vbus-supply:
> +        description: regulator providing 5V Vbus to the USB connector.

Unless Vbus is powering the phy, then this only belongs in the USB 
connector node.

> +
>        "#phy-cells":
>          enum: [ 0x0, 0x1 ]
>  
> -- 
> 2.17.1
>